Echeveria desmetiana
| Echeveria desmetiana | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Genus: | Echeveria |
| Species: | E. desmetiana
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| Binomial name | |
| Echeveria desmetiana De Smet
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| Synonyms[1][2] | |
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Echeveria desmetiana, incorrectly known as Echeveria peacockii, is in the family Crassulaceae. L. de Smet was the first grower of this plant.[3]
Description
This plant has a short stem or none at all. Leaves are numerous (50 or more), crowded, relatively narrow, 5–6 cm long, 20–35 mm wide, and arranged as a rosette. The top of the leaf is flat, bottom of the leaf is rounded and keeled (curved). The leaves are always dusty and crumbly. The peduncle is thick and erect. It has inflorescences of three, secund, 30 cm tall or more. There are few bracts on this plant and they are all very close together, are obovate, acuminate, keeled, are 18 mm thick, and are pruinose. Pedicels are very short (up to 3 mm thick). The sepals are bunched together, unequal in size, are oval-shaped, and grow up to 8 mm long. The corolla is straight grows up to 11 mm long, and 6–7 mm thick. The petals are slightly spreading at tips, sharply keeled, and are hollowed within the base. Nectaries are oblique and 1.5 mm wide.[3] It produces 20 or more flowers, and begins to flower in June. E. desmetiana has a chromosome number of n = 15.[3]
Taxonomy
Echeveria desmetiana was first described by De Smet in 1879.[4] The species had previously been described and illustrated as Echeveria peacockii by T. Moore in 1875, with reference to the name Echeveria peacockii that had been used by Croucher in 1874. However, Croucher's plant is now regarded as a different species, Dudleya pulverulenta, so Moore's name is illegitimate for the species he described, and the correct name is Echeveria desmetiana.[1][5]
Distribution
Echeveria desmetiana grows naturally in Mexico. It also grows in California, and can be traced to Dr. J. N. Rose's introduction of the plant.[3]
Habitat and ecology
Echeveria desmetiana tends to grow on rocky outcroppings at higher altitudes. In this type of environment, water is drained quickly from the roots of the plant, never allowing the plant to be submerged in water. This plant is fast growing and requires a bright light to prevent stretching, which forms an unhealthy plant.[6]
E. desmetiana grows in a warm, dry, sunny climate. They tend to grow in areas that are sometimes covered in shade (cannot tolerate too much sun). The optimal temperature for growth is 20-30℃.[7]
Cultivation
Echeveria desmetiana is cultivated as an ornamental plant, and often used as a drought-tolerant groundcover "carpet plant".
Notes
References
- ^ a b "Desmetiana De Smet, 1874". International Crassulaceae Network. Archived from the original on 2021-05-06. Retrieved 2022-03-23.
- ^ "Echeveria desmetiana De Smet". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2022-03-23.
- ^ a b c d Walther, Eric (1972). Echeveria. California Academy of Sciences. pp. 265–266.
- ^ "Echeveria desmetiana De Smet". The International Plant Names Index. Retrieved 2022-03-23.
- ^ Mottram, Roy (2017). "Taxonomic history of Echeveria desmetiana & its synonyms". Crassulacea. 5: 7–8. Retrieved 2022-03-23.
- ^ "Echeveria peacockii". Retrieved 2012-06-28.[permanent dead link]
- ^ Flower Information Network. "Echeveria Peacockii". antisocialmediallc.com. Archived from the original on 8 December 2011. Retrieved 1 July 2012.